/* scanf example */
#include <stdio.h>

int main()
{
  char str[80];
  int i;

  printf("Enter your family name: ");
  scanf("%s", str);  
  printf("Enter your age: ");
  scanf("%d", &i);
  printf("Mr. %s , %d years old.\n", str, i);
  printf("Enter a hexadecimal number: ");
  scanf("%x", &i);
  printf("You have entered %#x (%d).\n", i, i);
  
  return 0;
}